9 MARINE VESSEL POSITIONING SYSTEMS COMPRISING OF A DYNAMIC POSITIONING SYSTEM, NAMELY, COMPUTER BASED OPERATOR STATIONS AND COMPUTER BASED CONTROLLER CABINETS USED TO CONTROL A VESSEL'S DIRECTION WITH CONNECTIONS IN THE NATURE OF INTERFACES TO NAVIGATION SYSTEMS, NAMELY, WIND DIRECTION AND SPEED SENSORS, VESSEL GYROCOMPASSES, PITCH AND ROLL SENSORS, AND SHIP ENGINES, NAMELY, POWER AND PROPULSION UNITS INTEGRATING ENVIRONMENTAL COMPENSATORS AND MODELS PREDICTIVE CONTROLLERS